Oscillating-cylinder engii



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W. J. PARTRIDGE.

OSCILLATING CYLINDER ENGINE. No. 310,609 Patented Jan. 13, 1885.

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ilnrTEn STATES PATENT @Errea VARREN JAPHETH IARTRIDGE, OF ATHOL,MASSACHUSETTS.

OSCILLATING-CYLINDER ENGINE.

SPECIFICATION forming part of Letters Patent No. 310,609, dated January13, 1885.

Application tiled July 25, 1884.

$0 a/ZZ .whom t may concern.-

Be it known that I, WARREN J. PARTRIDGE, a citizen of the United States,residing at Athol, in the county of Worcester and State ot'Massachusetts. have invented a new and useful Improvement inOscillating-Cylinder Engines, of which the following is a specification,reference being had to the accompanying drawings.

My invention relates to oscillating-cylinder engines, and it has for itsobject to provide an engine ot' the class referred to that shall possesssuperior advantages in point of simplicity, cheapness of manufacture,durability, and general efficiency; and the invention con-` sists in theconstruction and novel arrangement of parts as will be hereinafter fullydescribed, and particularly pointed out in the claims.

In the drawings, Figure I is a plan view of an oscillating-cylinderengine embodying my im movements. Fin'. 2 is a vertical longitudi- P c bnal section on the line 90 x, Fig. I, through the cylinder. Fig. 3 is aView ofthe stationary valve detached from the valve-chest. Fig. i is alongitudinal sectional view ot' the stationary valve. Fig. 5 is an endelevation ofthe valve-chest, showing the packing-groove therein, andFig. 6 is an inner face view of one of the grooved collars, with thepackingringin the groove.

Referring by letter to the accompanying drawings, A designates theoscillating cylinder, which oscillates on a stationary valve, B, securedin bearings C C on the bed-plate D.

\Vith the exception of the stationary valve, and the manner of packingsaid valve and cylinder, the construction oi' the engine may be of anyof the well-known patterns of oscillating engines. The stationary valveB is provided with entrance-ports E E, and an exhaust-port, F. Theentrance-ports E E are made laterally through the stationary valve nearits middle, and communicate with the steam -inlet G. rIhe front walls ofthe entrance-ports E E are beveled or inclined outwardly to present theproper angle to the steam as it enters. rlhe entrance to the eX-haust-port is directly over the entrance-ports, and its outlet is inline With the steam-inlet, so that the steam enters at one end of thestationary valve,'passes through the cylinder, and escapes at the otherend of said valve. The valve B is provided near one end with an (Nomodel.)

integral collar, H, having an annular groove, I, in its inner face forthe reception ot' a metallic or soft packingring, J. The side of thecylinder which joins this collar II is also provided with an annulargroove, which receives one face of the packing-ring J. The opposite sideof the cylinder is also provided with an annular groove for a similarpurpose. Near the other end the valve B is provided with a loose collar,K, which is provided with an annular packing-groove in its inner face,which is designed for a metallic or soft packing-ring, L. rIhestationary valve B is secured in its bearings by a set-screw, M, andnuts N and O are screwed onto the threaded ends of the valve B, and holdthe packing in place. Steam enters the stationary valve at thesteam-inlet and passes through one of the entrance-ports behind thepiston head and drives it toward the opposite end of the cylinder,during which time the cylinder is oscillated and exhausts and opens theopposite steam-port, E, which drives the piston back, and thus onthroughout. The stationary valve B fits in the circular opening P in theside of the cylinder, and thus forms the steam-chest, and from thissteam-chest ports Q Q, lead to the cylinder A, as shown.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is

I. rIhe combination, with the oscillating cylinder having the annularpacking-groove in the sides around the circular opening P, of thestationary valve having the collars provided with annularpacking-grooves in their inner faces, the packing-rings, and the nutsfor holding them in place, substantially as specied.

2. rIhe combination, with the cylinder provided with the steam-chest,and annular packing grooves at one side, of the stationary valveprovided with the grooved collars, and entrance and exhaust ports, thepacking-rings, and the nuts for 'holding them in place, substantially asspecified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

WARREN JAPHE'll-l IA'RTRI DGE.

IVitnesses J oHN J. COXETER, ELvIN W. TRAIN.

